Carolyn and Brian Work in an Accounting Office $2.5$ Hours Working Alone It Would Take Brian

question 139

Essay

Carolyn and Brian work in an accounting office. If they work together they can complete a corporate tax return in $2.5$ hours. Working alone it would take Brian $35$ minutes longer than Carolyn to complete the return. How long does it take each person working alone to finish the job? If a third person is used to help complete the task, and works with the same efficiency as Brian, what is the total time it would take to complete the return if all three work together?

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Definitions:

Diagnostic

Related to the identification of the nature or cause of a certain phenomenon, typically involving systematic analysis of symptoms or conditions.

DSM

The Diagnostic and Statistical Manual of Mental Disorders, a standard classification of mental disorders used by mental health professionals.

Axis I Disorder

A classification used in previous versions of the DSM, referring primarily to mental disorders that are acute and typically symptomatic, such as mood disorders and anxiety disorders.

DSM-IV-TR

The Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision; a manual published by the American Psychiatric Association that includes all currently recognized mental health disorders.